Cliffscape Swordsmith

Build (At the beginning of each player's upkeep,
choose one: turn this card upside-down, right-side up,
have it Assemble, or leave it as is. A creature
upside-down for the turn is considered "building." At
each player's end step, if a building creature wasn't damaged, tapped, or targeted, put an Assembly
counter on it)
Assemble *4* (turn this creature right-side up and
remove 4 Assembly counters from it): Cliffscape Swordsmith assembles a Contraption named Redemption Edge.